fix type warning

Author: MayuriNFC

c/bubblesort/include/bubblesort.h

@@ -2,5 +2,5 @@
 #define _bubblessort_h
 #include <stdio.h>
 #include <stdlib.h>
-int *bubblesort(int *array);
+void *bubblesort(int *array);
 #endif

c/bubblesort/src/bubble.c

@@ -1,22 +1,27 @@
 #include "../include/bubblesort.h"
-int main(){
-    int a[] = {1,2,3,4,5,6,7,8,9,10};
+int main()
+{
+    int a[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
     int i;
-    for (i=0;i<sizeof(a)/sizeof(a[0]);i++){
-        printf("%d\n",a[i]);
+    for (i = 0; i < sizeof(a) / sizeof(a[0]); i++)
+    {
+        printf("%d\n", a[i]);
     }
     return 0;
 }
-int *bubblesort(int *array){
-    int i,j,temp;
-    for (i=0;i<sizeof(array)/sizeof(array[0]);i++){
-        for (j=0;j<sizeof(array)/sizeof(array[0])-i-1;j++){
-            if (array[j]>array[j+1]){
-                temp =array[j];
-                array[j]=array[j+1];
-                array[j+1]=temp;
+void *bubblesort(int array[])
+{
+    int i, j, temp;
+    for (i = 0; i < sizeof(array) / sizeof(array[0]); i++)
+    {
+        for (j = 0; j < sizeof(array) / sizeof(array[0]) - i - 1; j++)
+        {
+            if (array[j] > array[j + 1])
+            {
+                temp = array[j];
+                array[j] = array[j + 1];
+                array[j + 1] = temp;
             }
         }
     }
-    return *array;
 }